Improvement in shingle-machines



UNITED STATES PATENT OFFICE.

EMERSON SMITH, OF NEV HAVEN MILLS, VERMONT.

IMPROVEMENT IN SHINGLEnIViACHINES.

To all whom t may concern:

. Be it known that I, EMERSON SMITH, of New Haven Mills, in the county of Addison and State of Vermont, have invented a new and Improved Shingle-Machine; and I do hereby declare that the following is a full clear, and eXact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l is a transverse vertical section of my invention, taken in the line a; fr, Fig. 2. Fig. y2 is a plan or top view of the same.

Similar letters lof reference indicate corresponding parts in the two figures.

This invention relates toashingle-machine of thatclass in which a circular saw is employed for cutting the shingles from the bolt.

The object of the `invention is to obtain a machine which may be operated Y by two persons in such a manner as to insure the work being rapidly performed and in a perfect manner, the great loss occasioned by the imperfect shingles produced by the automatic shingle-machines being: avoided and a much simpler device obtained.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents a rectangular framing which vmay be constructed in4 any proper way to support the working parts; and B is a vertical shaft which is `placed centrally in the frame A and has a circular saw, C, attached to its upper end.

In the upper part of the framingAthere is V placed a horizontal rectangular frame, D.

This frame D is a sliding one, and it is fitted on or between guides a a, which are at the inner sides of parallel barst b, secured to the upper side pieces, c c, of the framing A. The frame D works directly over the saw C, and said frame D is provided at each end with two longitudinal parallel shafts, E E, one at each side. The shafts E have each two arms, d (Z, attached. These arms project inward or toward the center of the frame, and each is' each shaft E fit in oblique slots ff, which are made in vertical plates g g, attached to a slide, h, whicli is fitted in guides ft" i', attached to frame D. Each slide 7i has a serrated plate, j, attached to it, which forms a jaw, the .two jaws at each end of the frame D being parallel with each other, as shown clearly in Fig. 2. The shafts E are turned, when necessary,

4by means of levers F at their outer ends.

Vithin the framing A at each end there is secured by a pivot, 7s, an upright frame, Gr. To the upper. part of these frames G there are attached brackets H H, the upper surfaces of which at certain times form ways or rests for the bolt from which the shingles are cut. Each frame Gr is connected by a rod, I, with a lever, J, by means of which the frames and consequently the brackets may be tilted. This tilting movement of the frames G is controlled so far as .distance is concerned by stops'l at the lower part of the framing A.

The operation of the machine is as follows: There are two bolts secured in the frame D, one between each pair of jaws jj. The shaft B is rotated by any convenient power, and the frame D is shoved back and forth by hand, an operator being at each end of the framing A. A shingle is cut alternately from the two bolts, and at the termination of each stroke of the frame D the bolt which arrives over its brackets or ways is released from its jaws 7' by raising the levers F, and thereby turning the shafts E, the pins e of the arms d throwing outward the slidesh and jaws j in consequence of being fitted in the oblique slots f of the upright plates g. lfVhen the bolt falls on its ways or brackets II I-I, the operator tilts the frame Gr of the brackets or ways on which the released bolt rests, and

the latter has' an oblique` position given it directly the reverse of what it had before. By this arrangement the shingles are cut from the bolts in proper taper form, the bolts being' grasped by the jaws j as soon as they are set. The operators, it will be'seen, have not much labor to perform. The jaws j may be very readily manipulated, so as to release and grasp the bolt, and the frame D may be operated with but a moderate expenditure of power, the shingles as they are out or sawed being thrown from the machine by the operator.

1I wing thus described my invention, whatI claim as new, and desire to secure by Letters Patent, is-

The particular manner of operating or adjustingl the j uws j, to wit, by means of the pins e, attached to arms d on the shafts E, and fitted in oblique slots f in the upright pla-tes g of the slide h, to which the jaws j are secured.

EMERSON SMITH. Titnessesz SENECA SUMNER, CARLOS C. SUMNER. 

